Typical dorm rooms (that have two beds in one room) are never co-ed, but suites can be. Generally speaking though, no. There are apartments right next to campus though (Parkmerced - can be kinda dumpy tho), if you wanted to share an apartment with some friends. As long as you are all over 18, the landlords won t care.
Their site doesn t specify if the rooms themselves can be co-ed and I couldn t find it on their site but you can check it out for yourself:http://www.sfsu.edu/~housing/
I don t think rooms could ever be co-ed, but maybe I m wrong.
i think co-ed suites, not rooms, but dont quote me on that